Blue Drill Collars for Well Drilling - 79.4mm - 279.4mm

• After-sales Service: 24/7
• Warranty: 1 Years
• Manufacturing Process: CNC Milling
• Surface Treatment: Spray-Paint
• Operation Pressure: Atmospheric Pressure
• Material: Alloy
• Model NO.: 4130
• Name: Drill Collar
• Color: Blue
• Transport Package: Export Packing
• Specification: 79.4mm -279.4mm
• Production Capacity: 150000

Product Description

Blue Drill Collars for Well Drilling - 79.4mm - 279.4mm

Our API 7-1 Drill Collars are essential hole drilling tools. Made by GPE Oil Machinery Co., Ltd, these spiral drill collars are available in sizes ranging from 79.4mm to 279.4mm. They come in various types, including slick, non-magnetic, and flex drill collars. Choose the right one for your well drilling needs.

GM Drill Collar - Product Description

GM Drill Collar

GPE Oil Machinery Co., Ltd is proud to present the GM Drill Collar, the essential component in the Bottom Hole Assembly (BHA) for drilling operations. Designed to provide weight on the bit and maintain tension in the drillstring, this drill collar is manufactured with the highest standards and has been approved by the NS-1 certification.

Features and Benefits

• Manufactured from 4145H modified quenched and tempered steel for superior strength and durability.


• Strict metallurgical specifications ensure consistent maximum depth of hardness through full-length heat treating.


• Guaranteed hardness range of 285 to 341 BHN and a Charpy impact value of 40 ft-lbs at evenly distributed 16 points in any section at room temperature.


• Connections are completed with phosphate coating to protect them from the elements and prevent galling during initial make-up.


• Cold rolled thread roots on API and H-90 connections for enhanced durability.


• Supplied with pressed steel thread protectors for all drill collars equipped with standard connections.

Choose the GM Drill Collar for reliable performance and exceptional quality in your drilling operations. Trust GPE Oil Machinery Co., Ltd for all your drilling equipment needs.